From:	"Chris Jones" <cj7 AT ukc DOT ac DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: LFN and VFAT
Date:	Sun, 30 Apr 2000 02:22:37 +0100
Organization:	University of Kent at Canterbury
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To:	djgpp AT delorie DOT com
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> Btw, could anyone tell me how CRC is computed for Long File Name
> directory entries? I've never seen any explanation of this LFN field, just
> how names stored and their structure. How to compute that CRC
> out of LFN?

It's computed from the short name, and is also done by LFNDOS - check the
source code for the function (I think it's called) calculatechecksum()  -
it's quite simple really. Ralf Brown's interrupt list also explains it.

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